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/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
* (C) 2000 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef TransformOperation_h
#define TransformOperation_h
#include "platform/geometry/FloatSize.h"
#include "platform/transforms/TransformationMatrix.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"
namespace blink {
// CSS Transforms (may become part of CSS3)
class PLATFORM_EXPORT TransformOperation
: public RefCounted<TransformOperation> {
WTF_MAKE_NONCOPYABLE(TransformOperation);
public:
enum OperationType {
ScaleX,
ScaleY,
Scale,
TranslateX,
TranslateY,
Translate,
Rotate,
RotateZ = Rotate,
SkewX,
SkewY,
Skew,
Matrix,
ScaleZ,
Scale3D,
TranslateZ,
Translate3D,
RotateX,
RotateY,
Rotate3D,
Matrix3D,
Perspective,
Interpolated,
Identity,
RotateAroundOrigin,
};
TransformOperation() {}
virtual ~TransformOperation() {}
virtual bool operator==(const TransformOperation&) const = 0;
bool operator!=(const TransformOperation& o) const { return !(*this == o); }
virtual void apply(TransformationMatrix&,
const FloatSize& borderBoxSize) const = 0;
virtual PassRefPtr<TransformOperation> blend(
const TransformOperation* from,
double progress,
bool blendToIdentity = false) = 0;
virtual PassRefPtr<TransformOperation> zoom(double factor) = 0;
virtual OperationType type() const = 0;
// https://drafts.csswg.org/css-transforms/#transform-primitives
virtual OperationType primitiveType() const { return type(); }
bool isSameType(const TransformOperation& other) const {
return other.type() == type();
}
virtual bool canBlendWith(const TransformOperation& other) const = 0;
bool is3DOperation() const {
OperationType opType = type();
return opType == ScaleZ || opType == Scale3D || opType == TranslateZ ||
opType == Translate3D || opType == RotateX || opType == RotateY ||
opType == Rotate3D || opType == Matrix3D || opType == Perspective ||
opType == Interpolated;
}
virtual bool dependsOnBoxSize() const { return false; }
};
#define DEFINE_TRANSFORM_TYPE_CASTS(thisType) \
DEFINE_TYPE_CASTS(thisType, TransformOperation, transform, \
thisType::isMatchingOperationType(transform->type()), \
thisType::isMatchingOperationType(transform.type()))
} // namespace blink
#endif // TransformOperation_h
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